[1]蒋红光,李宜欣,迟浩然,等.高铁提速条件下路基不均匀沉降诱发的地基振动特性[J].东南大学学报(自然科学版),2021,51(3):442-448.[doi:10.3969/j.issn.1001-0505.2021.03.012]
 Jiang Hongguang,Li Yixin,Chi Haoran,et al.Ground vibration characteristics of high-speed railway induced by uneven settlement of subgrade with train speed increasing[J].Journal of Southeast University (Natural Science Edition),2021,51(3):442-448.[doi:10.3969/j.issn.1001-0505.2021.03.012]
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高铁提速条件下路基不均匀沉降诱发的地基振动特性()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
51
期数:
2021年第3期
页码:
442-448
栏目:
土木工程
出版日期:
2021-05-20

文章信息/Info

Title:
Ground vibration characteristics of high-speed railway induced by uneven settlement of subgrade with train speed increasing
作者:
蒋红光李宜欣迟浩然刘舜梁明姚占勇
山东大学齐鲁交通学院, 济南 250002
Author(s):
Jiang Hongguang Li Yixin Chi Haoran Liu Shun Liang Ming Yao Zhanyong
School of Qilu Transportation, Shandong University, Jinan 250002, China
关键词:
高速铁路 路基不均匀沉降 列车提速 地基振动 垂向Z振级
Keywords:
high-speed railway subgrade uneven settlement train speed increasing ground vibration vertical Z-vibration level
分类号:
TU435
DOI:
10.3969/j.issn.1001-0505.2021.03.012
摘要:
为了揭示高铁提速条件下路基不均匀沉降诱发的地基振动特性,建立了考虑路基不均匀沉降的列车-轨道-路基三维有限元动力分析模型.采用时域、频域分析方法获得了列车提速条件下典型路基不均匀沉降对地基振动传播的影响,并结合国内外环境振动控制标准讨论了列车提速的可行性.结果表明,路基不均匀沉降导致地基振动显著加剧,其水平横向和垂向的振动加速度分别增大了2.8和2.0倍.地基振动频谱响应以低频为主,其特征频率主要由单节车厢长度决定,无法反映路基表面不均匀沉降的波长特征.列车速度的提高导致地基振动响应加剧,但影响程度低于路基不均匀沉降.在现行规范中沉降波长20 m、幅值15 mm的限值下,当列车车速达到360 km/h时,周围环境的垂向Z振级已超过环境振动控制标准的要求,故高铁线路提速前需进一步评估路基平顺状态的影响.
Abstract:
To reveal the foundation vibration characteristics induced by uneven settlement of subgrade with train speed increasing, a three-dimensional finite element dynamic analysis model of train-track-subgrade considering uneven settlement was established. The influence of typical uneven settlement of subgrade on the vibration propagation of foundation with train speed increasing was obtained by using the time-domain and frequency-domain analysis methods. The feasibility of train speed increasing was also discussed based on the domestic and foreign environmental vibration control standards. The results show that the uneven settlement of subgrade can lead to significant increase of foundation vibration. The horizontal and vertical vibration accelerations increase to 2.8 and 2.0 times, respectively. The spectrum response of foundation vibration is dominated by low frequency, and its characteristic frequency is mainly determined by the length of single carriage, which cannot reflect the wavelength characteristics of the uneven settlement on the subgrade surface. The increase of the train speed leads to the aggravation of foundation vibration, but its influence is lower than that of the subgrade uneven settlement. Under the limit of the settlement wavelength of 20 m and the amplitude of 15 mm in the current specifications, the vertical Z-vibration level at the vehicle speed of 360 km/h exceeds the environmental vibration requirements. Therefore, the effect of the smooth state of subgrade needs to be further evaluated before the speed is increased.

参考文献/References:

[1] Connolly D P, Marecki G P, Kouroussis G, et al. The growth of railway ground vibration problems—A review [J]. Science of the Total Environment, 2016, 568:1276–1282. DOI: 10. 1016/j. scitotenv. 2015. 09. 101.
[2]雷晓燕. 高速列车诱发地面波与轨道强振动研究[J]. 铁道学报, 2006, 28(3): 78-82. DOI: 10.3321/ j. issn: 1001- 8360. 2006. 03. 016.
Lei X Y. Study on ground waves and track vibration boom induced by high speed trains [J]. Journal of the China Railway Society, 2006, 28(3): 78-82. DOI:10.3321/j. issn: 1001-8360. 2006. 03. 016. (in Chinese)
[3] 高广运, 姚哨峰, 孙雨明, 等. 2.5维有限元分析高铁荷载诱发非饱和土地面振动[J].同济大学学报(自然科学版), 2019, 47(7): 957-966. DOI:10.11908/j.issn.0253-374x.2019.07.007.
  Gao G Y, Yao S F, Sun Y M, et al. Unsaturated ground vibration induced by highspeed train loads based on 2.5D finite element method [J]. Journal of Tongji University(Natural Science), 2019, 47(7): 957-966.(in Chinese)
[4] 边学成, 陈云敏, 胡婷. 基于2.5维有限元方法模拟高速列车产生的地基振动[J]. 中国科学(G辑:物理学 力学 天文学), 2008,38(5): 600-617. DOI: 10. 1360/ 2008-38-5-600.
[5] Bian X C, Jiang H G, Cheng C, et al. Full-scale model testing on a ballastless high-speed railway under simulated train moving loads [J]. Soil Dynamics and Earthquake Engineering, 2014, 66: 368-384. DOI: 10. 1016/j. soildyn. 2014. 08. 003.
[6] Feng S J, Zhang X L, Zheng Q T, et al. Simulation and mitigation analysis of ground vibrations induced by high-speed train with three dimensional FEM [J]. Soil Dynamics and Earthquake Engineering, 2017, 94: 204-214. DOI: 10. 1016/j. soildyn. 2017. 01. 022:204-214.
[7] Zhai W, He Z,Song X.Prediction of high-speed train induced ground vibration based on train-track-ground system model [J]. Earthquake Engineering and Engineering Vibration, 2010, 9(4): 545-554. DOI: 10. 1007/s11803-010-0036-y.
[8] 边学成, 陈云敏. 基于2.5维有限元方法分析列车荷载产生的地基波动[J].岩土力学与工程学报, 2006, 25(11): 2335-2342. DOI: 10.3321/j. issn: 1000-6915. 2006. 11. 025.
Bian X C, Chen Y M. Ground vibration generated by train moving loadings using 2.5D finite element method [J]. Chinese Journal of Rock Mechanics and Engineering, 2006, 25(11): 2335-2342. DOI:10. 3321/ j. issn: 1000-6915. 2006. 11. 025. (in Chinese)
[9] 蔡袁强, 王玉, 曹志刚, 等. 列车运行时由轨道不平顺引起的地基振动研究[J]. 岩土力学, 2012, 33(2): 327-335. DOI: 10. 16285/j. rsm. 2012. 02. 025.
Cai Y Q, Wang Y, Cao Z G, et al. Study of ground vibration from trains caused by track irregularities [J]. Rock and Soil Mechanics, 2012, 33(2): 327-335. DOI:10. 16285/j. rsm. 2012. 02. 025. (in Chinese)
[10] 巴振宁, 金威, 梁建文. 层状饱和地基-轨道-列车耦合系统轨道不平顺引起的振动分析[J]. 振动与冲击, 2015, 34(15): 88-97. DOI: 10. 13465/j. cnki. jvs. 2015. 15. 017.
Ba Z N, Jin W, Liang J W. Vibration induced by track irregularities for a layered saturated ground-track-vehicle coupled system [J]. Journal of Vibration and Shock, 2015, 34(15): 88-97. DOI:10. 13465/j. cnki. jvs. 2015. 15. 017. (in Chinese)
[11] 房建, 雷晓燕, 练松良. 客运专线高架轨道结构振动特性实测研究[J]. 噪声与振动控制, 2019, 39(5): 142-146, 184. DOI: 10. 3969/j. issn: 1006-1355. 2019. 05. 027.
Fang J, Lei X Y, Lian S L. Experimental study on the vibration characteristics of elevated track structures for passenger dedicated lines [J]. Noise and Vibration Control, 2019, 39(5): 142-146, 184. DOI:10. 3969/j. issn: 1006-1355. 2019. 05. 027. (in Chinese)
[12] 房建, 雷晓燕, 练松良. 线路不平顺对桥上CRTSⅡ型板轨道振动的影响[J]. 铁道工程学报, 2019, 36(3): 13-18, 90. DOI: 10. 3969/j. issn: 1006-2106. 2019. 03. 003.
Fang J, Lei X Y, Lian S L, Research on the impact of track irregularities on the CRTS Ⅱ slab track structure vibration characteristics [J]. Journal of Railway Engineering Society, 2019, 36(3): 13-18, 90. DOI:10. 3969/j. issn: 1006- 2106. 2019. 03.003. (in Chinese)
[13] Bian X C, Jiang H G, Chen Y M, et al. A full-scale physical model test apparatus for investigating the dynamic performance of the slab track system of a high-speed railway [J]. Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 2016, 230(2): 554-571. DOI: 10. 1177/ 0954409714552113.
[14] Bian X C, Jin W F, Jiang H G. Ground-borne vibrations due to dynamic loadings from moving trains in subway tunnels [J]. Journal of Zhejiang University-Science A, 2012, 13(11): 870-876. DOI: 10. 1631/ jzus.a12isgt5.

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备注/Memo

备注/Memo:
收稿日期: 2020-11-25.
作者简介: 蒋红光(1985—),男,博士,副教授,hongguang_jiang@sdu.edu.cn.
基金项目: 国家自然科学基金资助项目(51608306)、教育部博士后科学基金资助项目(2016M590636)、 山东大学青年学者未来计划资助项目(2019WLJH60).
引用本文: 蒋红光,李宜欣,迟浩然,等.高铁提速条件下路基不均匀沉降诱发的地基振动特性[J].东南大学学报(自然科学版),2021,51(3):442-448. DOI:10.3969/j.issn.1001-0505.2021.03.012.
更新日期/Last Update: 2021-05-20